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化学实验不仅是对课本知识的验证,也是培养学生观察能力、思维能力和记忆能力的重要手段,为此,我们对实验教学做了如下几方面的尝试. 一、注重实验宏观现象的观察与微观实质的分析的有机结合. 在实验教学中,我们根据学生的认识规律采取两种形式:一种是先观察宏观现象后分析微观实质,这是一个从现象到本质的认识过程;另一种是先分析微观实质,推出可能出现的宏观现象,然后再观察外在表
Chemical experiment is not only a verification of textbook knowledge, but also an important means to cultivate students’ observation ability, thinking ability and memory ability. For this reason, we have done several experiments on experimental teaching. First, pay attention to the observation and microscopic observation of experimental macroscopic phenomena. The organic combination of substantive analysis. In experimental teaching, we take two forms according to the student’s cognizance rules. One is to first analyze macroscopic phenomena and then analyze the microscopic substance. This is a cognitive process from phenomena to essence; the other is First analyze the micro essence, introduce possible macroscopic phenomena, and then observe the external table